Paper Title:
Investigation of Nonlinear Acoustic Effects in Two-Dimensional Open Cavity Flow
  Abstract

The aeroacoustic field generated by incompressible airflow over a two-dimensional open cavity is investigated. The main objective of this study is to determine the role of nonlinearity on this phenomenon. To this end the cavity aeroacoustics is investigated with both linearised and nonlinear approaches. Both free-air and confined cavity geometries are investigated and it is shown that nonlinearity does not affect the aeroacoustic field much. The solutions are verified for grid and computational domain independency. It is concluded from this study that nonlinear aeroacoustic phenomena are very weak in external incompressible flows and low-cost linearised formulations can easily be applied in such cases.

  Info
Periodical
Chapter
Chapter 22: Metrology and Measurement
Edited by
Wu Fan
Pages
4578-4588
DOI
10.4028/www.scientific.net/AMM.110-116.4578
Citation
M. Ebrahimi, "Investigation of Nonlinear Acoustic Effects in Two-Dimensional Open Cavity Flow", Applied Mechanics and Materials, Vols. 110-116, pp. 4578-4588, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Ho Dong Yang, Yool Kwon Oh
Abstract:The present study is investigated the causes of enhanced heat transfer during the melting process of solid-liquid PCM (Phase Change...
1145
Authors: Yun Dong Sha, Zhi Jun Gao, Fei Xu
Chapter 1: Vibration Engineering
Abstract:Thin-walled structures of future hypersonic flight vehicles will encounter complex loadings and exhibit obvious nonlinear responses. The...
220
Authors: Zheng Yu Zheng, Ren Xian Li
Abstract:This paper dwelled on the principle of Computational Aero-Acoustics (CAA), and utilized the Boundary Element Method (BEM) combined with the...
58
Authors: Qi Chen
Abstract:The applications of sandwich structures in industry are numerous. The optimization of such structures with high strength and light weight...
596
Authors: Li Jun Zhang, Xiao Jiao Chen, Min Li, Yue Fan, Qiang Fu
Chapter 2: Sensors, Measurement and Detection
Abstract:At present, the flight velocity and flight performance of an aircraft are higher, so that aerodynamic noise caused by an engine jet in the...
809